US 11,677,301 B2
Method of manufacturing a rotor for an electric motor for a washing machine
Luiz V. Dokonal, Joinville (BR); Evandro J. Meurer, Stevensville, MI (US); and Orlando Starke, Joinville (BR)
Assigned to Whirlpool Corporation, Benton Harbor, MI (US)
Filed by WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed on Oct. 18, 2019, as Appl. No. 16/656,682.
Application 16/656,682 is a continuation of application No. 14/043,059, filed on Oct. 1, 2013, granted, now 10,491,087.
Prior Publication US 2020/0052560 A1, Feb. 13, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H02K 15/03 (2006.01); H02K 1/2786 (2022.01)
CPC H02K 15/03 (2013.01) [H02K 1/2786 (2013.01); Y10T 29/49012 (2015.01)] 21 Claims
OG exemplary drawing
 
1. A method of manufacturing a rotor of an electric motor, comprising:
securing a plurality of permanent magnets to a sheet to form a magnet chain,
bending the sheet to engage an inner surface of each permanent magnet in direct contact with a curved outer surface of an insert mold,
wrapping a metallic strip around an outer surface of the sheet to form a yoke of the rotor, and
molding a polymeric material over the magnet chain and the yoke to form a cylindrical shell.